参数资料
型号: TDA7405
厂商: STMICROELECTRONICS
元件分类: 音频控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44
封装: 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44
文件页数: 15/57页
文件大小: 750K
代理商: TDA7405
Obsolete
Product(s)
- Obsolete
Product(s)
TDA7405
22/57
5.10.6Output Selector
The output-selector allows to connect the main- or the second-source to the Front-, Rear-speaker-attenuator,
respectively. As an example of this programming the device is able to connect via software the main-source to
the back (rear) and the second-source to the front (see Figure 23).
Figure 23. Output Selector
5.10.7Speaker-Attenuator and Mixing
A Mixing-stage is placed after each speaker-attenuator and can be set independently to mixing-mode. Having
a full volume for the Mix-signal the stage offers a wide flexibility to adapt the mixing levels.
Figure 24. Mixing Configuration
5.10.8Audioprocessor Testing
During the Testmode, which can be activated by setting bit D0 of the stereodecoder testing-byte and the audio-
processor testing byte, several internal signals are available at the FD2R- pin. During this mode the input re-
sistance of 100kOhm is disconnected from the pin. The internal signals available are shown in the Data-byte
specification.
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